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Date: Tue, 26 Dec 2023 10:09:10 +0800
From: Dongliang Cui <dongliang.cui@...soc.com>
To: Steven Rostedt <rostedt@...dmis.org>,
Masami Hiramatsu
<mhiramat@...nel.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
<linux-kernel@...r.kernel.org>, <linux-trace-kernel@...r.kernel.org>
CC: Dongliang Cui <cuidongliang390@...il.com>,
Hongyu Jin
<hongyu.jin@...soc.com>
Subject: [PATCH] block: Add ioprio to block_rq tracepoint
Sometimes we need to track the processing order of
requests with ioprio set, especially when using
mq-deadline. So the ioprio of request can be useful
information.
Signed-off-by: Dongliang Cui <dongliang.cui@...soc.com>
---
include/trace/events/block.h | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 0e128ad..e84ff93 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -82,6 +82,7 @@
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int, nr_sector )
+ __field( unsigned int, ioprio )
__array( char, rwbs, RWBS_LEN )
__dynamic_array( char, cmd, 1 )
),
@@ -90,16 +91,17 @@
__entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0;
__entry->sector = blk_rq_trace_sector(rq);
__entry->nr_sector = blk_rq_trace_nr_sectors(rq);
+ __entry->ioprio = rq->ioprio;
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
__get_str(cmd)[0] = '\0';
),
- TP_printk("%d,%d %s (%s) %llu + %u [%d]",
+ TP_printk("%d,%d %s (%s) %llu + %u 0x%x [%d]",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, __get_str(cmd),
(unsigned long long)__entry->sector,
- __entry->nr_sector, 0)
+ __entry->nr_sector, __entry->ioprio, 0)
);
DECLARE_EVENT_CLASS(block_rq_completion,
@@ -112,6 +114,7 @@
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int, nr_sector )
+ __field( unsigned int, ioprio )
__field( int , error )
__array( char, rwbs, RWBS_LEN )
__dynamic_array( char, cmd, 1 )
@@ -121,17 +124,19 @@
__entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0;
__entry->sector = blk_rq_pos(rq);
__entry->nr_sector = nr_bytes >> 9;
+ __entry->ioprio = rq->ioprio;
__entry->error = blk_status_to_errno(error);
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
__get_str(cmd)[0] = '\0';
),
- TP_printk("%d,%d %s (%s) %llu + %u [%d]",
+ TP_printk("%d,%d %s (%s) %llu + %u 0x%x [%d]",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, __get_str(cmd),
(unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->error)
+ __entry->nr_sector, __entry->ioprio,
+ __entry->error)
);
/**
@@ -180,6 +185,7 @@
__field( sector_t, sector )
__field( unsigned int, nr_sector )
__field( unsigned int, bytes )
+ __field( unsigned int, ioprio )
__array( char, rwbs, RWBS_LEN )
__array( char, comm, TASK_COMM_LEN )
__dynamic_array( char, cmd, 1 )
@@ -190,17 +196,19 @@
__entry->sector = blk_rq_trace_sector(rq);
__entry->nr_sector = blk_rq_trace_nr_sectors(rq);
__entry->bytes = blk_rq_bytes(rq);
+ __entry->ioprio = rq->ioprio;
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
__get_str(cmd)[0] = '\0';
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
- TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
+ TP_printk("%d,%d %s %u (%s) %llu + %u 0x%x [%s]",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, __entry->bytes, __get_str(cmd),
(unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm)
+ __entry->nr_sector, __entry->ioprio,
+ __entry->comm)
);
/**
--
1.9.1
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